Question

Can you solve this equation, using linear combination?

5x + 2y = –4
–3x + 2y = 12

Answer 1

subtract 2nd equation from first,y will get canceled,you will get x

Answer 2

No, but you can graph it here: https://www.desmos.com/calculator

Answer 3

:)

Answer 4

If it has choices then you can just graph it there..

Answer 5

But if you have to write it out then you can't..

Answer 6

why not

Answer 7

Here are the options :)
A.
(–2, 3)

B.
(2, –7)

C.
(0, –2)

D.
(4, 0)

Answer 8

Answer is A

Answer 9

lol

Answer 10

Graphed it the solution is -2, 3.

Answer 11

This graphing site is awesome. You should learn how to use it. https://www.desmos.com/calculator

Answer 12

thats not the method you are supposed to use here

Answer 13

why would you publish other site like that

Answer 14

@hartnn

Answer 15

Wait, I'm confused. Does that mean it isn't option A? Since he was using the incorrect solving method?

Answer 16

no
different methods dont change the answer :)